The check-cashing store also makes one-month add-on interest loans at 6.4 percent discount interest per week. Thus if you borrow $140 for one month (four weeks), the interest will be ($140 1.0644) $140 = $39.43. Because this is discount interest, your net loan proceeds today will be $100.57. You must then repay the store $140 at the end of the month. To help you out, though, the store lets you pay off this $140 in installments of $35 per week. What is the APR of this loan? What is the EAR?